In Unit 8: Animals we will discuss the vast diversity seen among animals on Earth. We will also talk about the evolutionary paths taken by modern organisms to get to this stage. we will be using Big Ideas: Unity and Diversity of Life, Evolution and Structure and Function. For a better explanation of these Big Ideas and all of the others that play a role in this course check out this link to the Pennsylvania Depart ment of Educations SAS portal.Choose Biology in the course drop down box at the bottom of the page and you will be introduced to all of the Big Ideas for Biology.